Regenerative coke-oven



L. WILPUTTE.

REGENERATIVE COKE OVEN.

APPUCATION man SEPT. so, 1918.

1,360,6 l0. Patented. Nov. 30, 1920.

v//// Q f/H/ nveM/foz AUNITED STATES PATENT OFFICE.

LOUIS WILPUTTE, OF NEW ROCHELLE, NEV YORK, ASSIGNOR OF TWO-THIRDS T0 ALICE A. WILPUTTE, OF NEW ROCHELLE, NEW YORK.

REGENERATIVE COKE-OVEN.

Specification of Letters Patent.

Patented Nov. 30, 1920.

To all whom t may concern.'

Be it lrnown that I, LOUIS IVILPUTTE, a citizen of the United States, and resident of New Rochelle, in the county of Westchester and State of New York, have invented cer tain new and useful Improvements in Regenerative Coke-Ovens, of which the following is a specification.

My present invention relates particularly to regenerative coke `ovens of the type hereto-- fore devised by me in which a plurality of regenerators arranged side by side beneath and extending transversely to the lengths of' the coking chambers, are supplied with air to be preheated by means of one or more metallic air supply pipes, each formed with a discharge orifice for each of the plurality of regenerators, the different discharge orices being .carefully proportioned to insure the proper supply of air through each pipe to each of the plurality of regenerators served by the pipe. In coke ovens of this type each air pipe is received in a corresponding channel, generally rectangular in cross section, which is formed in the brickwork under the regenerators, served by the supply pipe which is inserted in the channel. The top wallof each channel is formed with portsopening into the different regenerators, and with which the discharge orifices of the corresponding pipe register. In an ordinary ley-product ycoke oven, these channels, which extend into the oven structure from the side of the oven battery, are in the neighborhood of twenty feet long'. The iron air supply pipes are ordinarily made removable so that the discharge orifices may be ree-.med out or partially plugged to change this distribution of air to the different regenerators if, and when this becomes necessary'. -f Practical considerations, which those familiar with the furnace art will readily understand, maire it necessary to provide some clearance between the walls ofthe channel and the external wall of the air supply pipe in order to permit the ready removal and insertion of the latter not only when the structure is in its initial condition, but also after due to thermal expansion, etc. For eX- ample, it has been common practice to malte brickworlr channel seven andorre-half inches square in cross section and use an iron air supply pipe of an external diameter of sin and fiveeighths inches. This permits a possible by-passing, or cross-how, from one of the ports in the top wall of the channel to an adjacent port, through the clearance space between the periphery of the iron pipe and the inner walls of the masonry channel.

While this cross-flow has not given rise to any real dilicult-y, the tendency to cross-flow is one which it is desirable to eliminate, and the primary obj ect of the present invention is 'to provide simple and effective means for substantially eliminating the tendency .to cross-flow through the clearance space between the metallic pipe and the inner walls of the brickwork channel. This object is attained in accordance with the present invention by providing means for forcing the metallic air pipe into contact with the top wall of the briclrwork channel after the pipe is inserted in the channel. In the preferred manner of carrying out the invention I attach to the iron pipe, which is circular in cross section, lugs Aor projections which are received in one of the lower corners of the brickwork channel when the pipe is being inserted in, or `removed from the channel, but which are brought beneath the center of the pipe by a partial rotation of the latter, after the pipe has been fully `entered in the channel.

The various features .of novelty which characterize my invention are pointed out with particularity in the claims annexed to and forming a partof this specification. For a better understanding of the invention and the advantages possessed by it, reference should be had to the accompanying drawings and descriptive matter in which I have illustrated and described a preferred embodiment of my invention.

AOf the drawings, Figure l is a vertical section of a portion of a regenerative coke oven.

Fig. 2 is a partial section on line 2 2 of Fig. l, showing the air pipe in its operat; ing position.

Fig. 3 is a view taken similarly to Fig. 2 showing the pipe in position occupied by it when being inserted and removed from the oven structure.

Fig. 4 is a view taken similarly to Fig. 2 illustrating a slight modification.

In the drawings A represents a portion of a regenerative coke oven having longitudinal regenerators corresponding in number'to the number' of heating fines in the heating walls (not shown) with which the regenerators are connected, thc dierent iiues in each of the heating walls above the regenerators being connected to different regenerators. rllhis type of oven is disclosed in my prior Patents No. 1212866 granted January 16, 1917, and No. 1253760 granted January 15, 1918.

Beneath the regenerators are formed one or more briclrworlr channels C, running transversely of the regenerators, into the oven structure from the opposite side edges of the battery to the center of the latter. Ports l) in the top wall of each channel C open, one each, into each ot the regenerators B above the channel. Each channel C receives an iron air supply pipe E formed with ports El which register with the brickworlr ports D when the air pipe is in its operating position as shown in Figs. 1 and 2. The brickwork channel C is generally rectangular' in cross section, though advantageously shown, a shallow groove C may be formed in the top wall of each channel C to receive the upper portion of the corresponding pipe The air pipe E is circular in cross section and for reasons already explained, the external diameter oi the air pipe is less than the width and depth of the channel C in which it is received.

The pipe E has attached to it lugs or camming parts E2, as shown in Figs. 1, 2 and 3 in the form of bent arms formed out or" metal plate, and each attached at one end to the pipe E as by spot-welding it to the latter. rlhe free end of each arm E2 projects away from the outer surface of the pipe E, rEhe parts are so proportioned that the pipe E may be axially inserted in and removed from its channel C, when the pipe is rotated about l5 degrees or so, away from the position in which the ports E register with the ports D. ln this angular adjustment of the pipe E, shown in Fig. 3, the arms E2 are received in one of the lower corners of the channel C, while the body of the pipe rests upon the bottom wall ot the channel. After the pipe E is thus inserted in the channel C, the pipe is rotated to bring it into the position shown in Figs. 1 and 2. This rotation of the pipe E brings the arms E2 between the under side of the pipe and the bottom wall of the channel C and there by cams the pipe snugly up against the top wall ol the channel. This effectu ally eliminatesthe possibility or an7 appreciable `flow through the space in the channel C external to the pipe E, from one to another or" the ports D. By forming the arms E2 of metal plate as shown in Figs. 1, 2 and 3, these arms are given sufficient flexibility to compensate for irregularities in the briclrworlr. Where such irregularities may not require the use of flexible arms E2, the latter may be replaced by solid lugs E20, as shown in Fig. fl. The lug E20 may be secured to the pipe E by spot-welding or in any other suit able manner.

While in accordance with the provisions of the statutes, l have illustrated and described the best forms of my invention now known to me, it will be apparent to those skilled in the art that changes may be nia-de in the form or' the apparatus disclosed without departing from the spirit of my invention as set forth in the appended claims, and that certain features ofmy invention may sometimes be used to advantage without a corresponding use of other features.

Having now described my invention, what l claim as new and desire to secure by Letters Patent is l. lna regenerative furnace, comprising a group of regenerator chambers arranged side by side and a brickwork channel alongside the regenerator chambers and ports leading from the different regenerator chambers to said channel at one side of the lat, ter, and having a removable metallic pipe loosely received in said channel and formed with orifices adapted to register with said ports, the improvement consisting of coperating pipe and channel parts automatically coperatinvf to cam the pipe laterally in said channel into snug engagement with the side of the channel at which said ports open as said pipe is moved in said channel to bring said orilices into registry with said ports. A

2. ln a regenerative furnace comprising a group of regenerator chambers arranged side by side and a brick-work channel alongside the regenerator chambers and ports leading from the diii'erent regenerator chambers to said channel at one side ofthe latter, and having a removable metallic pipe loosely received in said channel and formed with orifices adapted to register with said ports, the improvement which comprises projections rigidly secured to the pipe and adapted to engage with the wall of the channel and force the pipe laterally into snug engagement with the side of the channel at which said ports open` 3. ln a regenerative furnace comprising a group of regenerator chambers arranged side by side and a brick-work channel alongside the regenerator chambers and ports leading from the different regenerator chambers to said channel at one side of the latter, and having a removable metallic pipe loosely received in said channel and formed with orilices adapted to register with said ports, the improvement which comprises projections secured to the pipe and adapted to engage with the wall of the channel and force the pipe laterally into snug engagement with the side of the channel at which said ports open, as said pipe is rotated from one position in which said orifices do not register with said ports into a second position in which the orifices register with said ports.

4. In a regenerative furnace comprising a group of regenerator chambers arranged side by side and a brickwork channel alongside the regenerator chambers and ports leading from the diii'erent regenerator chambers to said 'channel at one side of the latter, and having a removable. metallic pipe loosely received in said channel and formed with orifices adapted to register With said ports, the improvement Which comprises projections secured to the pipe and adapted to engage With the Wall of the channel and force the pipe laterally into snug engagement With the side of the channel at which said ports open as said pipe is rotated from one position in which said orifices do not register With said ports into a second position in which the orifices register with said ports, said channel being formed with a corner receiving said projections when said pipe is in said one position.

5. In a regenerative furnace comprising a .group of regenerator chambers arranged the improvement which comprises yielding projections secured to the pipe and adapted to engage With the Wall of the channel and force the pipe laterally into snug engagement with the side of the channel at which said ports open as said pipe is rotated from one position in which said'orices do not register With said ports into a second position in which the orifices register With said ports.

6. In a regenerative coke oven comprising a plurality of regenerators arranged side by side and formed With a brickWork channel beneath the regenerators, polygonal in cross section, and having ports leading through its top Wall to the diiierent regenerator chambers and having av removable metallic pipe, circular in cross section and loosely received in said channel and formed With orilices adapted to register with said ports, the improvement Which con.-

v sists in projections secured to said pipe and adapted to slide in a lovver corner oflsaid channel as said pipe is inserted in and removed rom said channel, and adapted to engage the bottom of the channel and cam the pipe against the top Wall of the channel When the pipe is rotated in the channel.

Signed at New York city, in the county of New York and State of New York, this 28th day of September, A. D. 1918.

LOUIS VILPUTTE. 

